class_docstr: Test upgrade_opt behavior.
code: def _get_args(self):
      # Add arguments for the Torch Ranker Agent to test
      # Override in child classes
      return dict(
          task="integration_tests:overfit",
          optimizer="adam",
          learningrate=1e-2,
          batchsize=4,
          validation_every_n_epochs=5,
          validation_patience=10,
          lr_scheduler="none",
          embedding_size=8,
          gradient_clip=0.5,
      )
  
imports: import os
  import pytest
  import unittest
  import parlai.utils.testing
  from parlai.tasks.integration_tests.agents import CandidateTeacher
label_desc: Use image node_id 2 for calling the _AbstractTRATest obj's underlying member method code with example usage: obj._get_args() and returns: dict